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What is the value of -3mn + 4m-3 when m = 2 and n =-4?

off-topic
 Apr 24, 2020
 #1
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I'm not sure how this applies to off-topic but...

 

Substituting 2 and -4 for m and n respectively,

 

-3(2)(-4)+4(2)-3= 29.

 Apr 24, 2020

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